Home / 19,301.52-28,932.84-8,920.56

Finding the Fourth Proportional to 19,301.52, 28,932.84 and 8,920.56

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Solution

The fourth proportional to 19,301.52, 28,932.84 and 8,920.56 is: 13,371.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,301.52 : 28,932.84 = 8,920.56 : x
  2. Step 2: Convert to fraction form
    19,301.52/28,932.84 = 8,920.56/x
  3. Step 3: Cross multiply
    19,301.52x = 28,932.84 × 8,920.56
  4. Step 4: Simplify right side
    19,301.52x = 258,097,135.19
  5. Step 5: Solve for x
    x = 258,097,135.19/19,301.52
  6. Step 6: Final answer
    x = 13,371.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.